Question
किस रासायनिक तत्व का परमाणु क्रमांक 57 होता है?
Answer
'लांथनम (La)' का परमाणु क्रमांक 57 होता है।Subscribe to our youtube channel!
Staying up to date on Question/Notes related to General knowledge, current affairs and are useful in Academic and Government Exams. More than 8000 video on our channel.
Subscribe